TWI596953B - Sound recording module - Google Patents

Description

Recording module

The invention relates to a recording module, and in particular to a recording module with good sound collecting effect.

At present, most of the commercially available speakers cannot express the natural sound field. The reason is that the sound waves emitted from the speakers are first transmitted through the air and then reach the human ear, and then passed through the auricle and the outer ear to the eardrum. Perceived by the brain's nerves. In the process of the aforementioned sound wave transmission, the sound wave may be refracted, diffracted or diffracted due to interference of the human auricle, the external auditory canal, the skull or the shoulder, and the audio quality is affected.

The existing method is to use the "Dummy Head" two-channel recording method to improve the aforementioned defects. The recording method is to place two miniature omnidirectional microphones in the external auditory canal of the artificial head, for example, close to a person. The location of the eardrum. The sound waves to be recorded are transmitted to the micro omnidirectional microphone after passing through the simulated auricle and the outer ear, and the sound waves to be recorded are also interfered by the auricle, external auditory canal, skull or shoulder of the simulated human head, that is, the real simulation The influence of the head-related transfer function (HRTF) that the human ear receives when hearing the sound. The audio content thus recorded can reproduce the stereo sound when played. However, the user must carry the artificial head with him to receive the recording immediately to reproduce the sound heard by the human ear, so the operation is extremely inconvenient.

The invention provides a recording module which has a good sound collecting effect.

The invention provides a recording module, which comprises a sound collecting space, an acoustic wave inlet port and a sound collecting component. The sound collecting space has at least a reflective block. The reflective blocks are adjacent to the first sound wave gathering region and the second sound wave gathering region, respectively. The first sound wave gathering area is in the shape of a tiger's mouth, so that the sound-receiving element fixing portion is defined at the deepest point. The sound wave inlet port is formed corresponding to at least a partial circumference side of the second sound wave gathering region. The sound pickup element is disposed at the sound pickup element fixing portion of the first sound wave gathering area. The radio component is used to record the audio entering the sound collection space.

In an embodiment of the invention, the recording module further includes a sound collecting structure. The sound collecting structure has a through hole, wherein the through hole penetrates the fixing part of the sound receiving element of the first sound wave collecting area, and the sound wave inlet port and the through hole are respectively located on opposite sides of the sound collecting space.

In an embodiment of the invention, the recording module further includes a housing. The sound collecting structure is disposed in the casing, and the sound collecting structure and the casing define a sound collecting space and an acoustic wave inlet port.

In an embodiment of the invention, the sound collecting structure and the housing further define an acoustic wave entry zone. The sound wave entering zone is adjacent to the second sound wave gathering zone, and the reflective block is located between the sound wave entering zone and the second sound wave gathering zone.

In an embodiment of the invention, the first sound wave collecting area and the sound collecting element are respectively located on opposite sides of the sound collecting structure, and the through hole exposes at least part of the sound collecting element.

The invention provides another recording module, which comprises a first sound collecting space, a second sound collecting space, a first sound wave inlet port, a second sound wave inlet port, a first sound collecting element and a second sound collecting element. The first set of acoustic spaces has at least a first reflective block. The first reflective block is adjacent to the first sound wave gathering region and the second sound wave gathering region, respectively. The first sound wave gathering area is in the form of a tiger's mouth, so that the first sound receiving element fixing portion is defined at the deepest point. The second set of sound spaces is juxtaposed with the first set of sound spaces. The second set of acoustic spaces has at least a second reflective block. The second reflective block is adjacent to the third sound wave collecting area and the fourth sound wave collecting area, respectively. The third sound wave gathering region has a tiger mouth shape such that the second sound pickup element fixing portion is defined at the deepest point, and the first sound pickup element fixing portion and the second sound pickup element fixing portion are opposed to each other. The first acoustic wave inlet port is formed corresponding to at least a partial circumferential side of the second sound wave gathering region. The second acoustic wave inlet port is formed corresponding to at least a partial circumference side of the fourth sound wave gathering region, and the first sound wave inlet port and the second sound wave inlet port are opposed to each other. The first sound pickup component is disposed in the first sound pickup component fixing portion of the first sound wave gathering area, and the first sound pickup component is configured to receive the audio entering the first sound collection space. The second sound pickup component is disposed in the second sound pickup component fixing portion of the third sound wave gathering area, and the second sound pickup component is configured to receive the audio entering the second sound collecting space.

In an embodiment of the invention, the recording module further includes a sound collecting structure. The sound collecting structure has a first through hole and a second through hole opposite to the first through hole. The first through hole penetrates the first sound receiving element fixing portion of the first sound wave collecting area, and the first sound wave inlet port and the first through hole are respectively located on opposite sides of the first sound collecting space. The second through hole penetrates the second sound receiving element fixing portion of the third sound wave collecting area, and the second sound wave inlet port and the second through hole are respectively located on opposite sides of the second sound collecting space.

In an embodiment of the invention, the recording module further includes a housing. The sound collecting structure is disposed in the housing, and the sound collecting structure and the housing define a first sound collecting space, a first sound wave inlet port, a second sound collecting space, and a second sound wave inlet port.

In an embodiment of the invention, the sound collecting structure and the housing further define a first sound wave entry zone and a second sound wave entry zone. The first acoustic wave entry zone is adjacent to the second acoustic wave accumulation zone, and the first reflective block is located between the first acoustic wave entry zone and the second acoustic wave accumulation zone. The second acoustic wave entry zone is adjacent to the fourth acoustic wave accumulation zone, and the second reflective block is located between the second acoustic wave entry zone and the fourth acoustic wave accumulation zone.

In an embodiment of the invention, the first sound wave collecting area and the first sound collecting element are respectively located on opposite sides of the sound collecting structure, and the first through hole exposes at least a part of the first sound collecting element. The third sound wave collecting area and the second sound collecting element are respectively located on opposite sides of the sound collecting structure, and the second through hole exposes at least part of the second sound collecting element.

Based on the above, since the sound wave and the phase are different due to the difference in the sound wave transmission distance, the aperture of the sound collecting space is tapered from the sound wave inlet port toward the deepest boundary (or the fixed portion of the sound pickup member) and the design of the reflective block. It is possible to control the interference of sound waves entering the sound collecting space to have good horizontal directivity and eliminate noise. In this way, the audio recorded by the recording module of the present invention can not only reproduce the stereo sound effect but also have good audio quality during playback.

The above described features and advantages of the invention will be apparent from the following description.

1A is a schematic diagram of a recording module according to a first embodiment of the present invention. FIG. 1B is a top plan view of the recording module of FIG. 1A. Referring to FIG. 1A and FIG. 1B , in the embodiment, the recording module 100 includes a first sound collecting space 110 , a first sound wave inlet port 120 , and a first sound pickup element 130 . The first set of acoustic spaces 110 has at least a first reflective block 111. The first reflective block 111 is adjacent to the first acoustic wave collecting area 112 and the second sound wave collecting area 113, respectively. The first sound wave gathering region 112 has a tiger mouth shape such that the first sound pickup element fixing portion 114 is defined at the deepest point. The first acoustic wave inlet port 120 is formed correspondingly to at least a partial circumference side of the second sound wave gathering region 113. The first sound pickup element 130 is disposed at the first sound pickup element fixing portion 114 of the first sound wave gathering area 112. The first sound pickup component 130 is configured to record the audio entering the first sound collection space 110.

In detail, the recording module 100 further includes a sound collecting structure 140 and a housing 150. The sound collecting structure 140 is disposed in the housing 150, and the first sound collecting space 110 and the first sound wave inlet port 120 are, for example, a sound collecting structure. 140 is defined with the housing 150. For example, the circumferential side of the housing 150 can have an opening through which the sound collecting structure 140 can be used to define a first acoustic wave inlet port 120 that is part of the aforementioned opening. The first acoustic wave inlet port 120 is in communication with the second sound wave gathering region 113, wherein the second sound wave collecting region 113 is located between the first sound wave inlet port 120 and the first sound wave gathering region 112, and the second sound wave gathering region 113 is first and The sound wave gathering regions 112 are in communication. In addition, the second sound wave collecting area 113 and the first sound wave collecting area 112 are respectively located on opposite sides of the first reflecting block 111, and the first sound wave collecting area 112 and the sound collecting element 130 are respectively located on opposite sides of the sound collecting structure 140.

In the present example, the aperture of the second acoustic wave collecting region 113 tapers from the first acoustic wave inlet 120 toward the first acoustic wave collecting region 112, and the diameter of the first acoustic wave collecting region 112 is from the second acoustic wave collecting region 113 toward the deepest portion thereof. The boundary (or the first sound pickup element fixing portion 114) is tapered. The aforementioned deepest boundary means that the first sound wave gathering region 112 is located farthest from the first sound wave gathering region 112 and the second sound wave gathering region 113. As shown in FIG. 1B, the aperture of the first acoustic wave collecting region 112 relatively close to the second acoustic wave collecting region 113 is closer to the innermost portion of the first acoustic wave collecting region 112 than the deepest boundary (or the first sound collecting member fixing portion 114). It is big, so it looks like a tiger. On the other hand, the sound collecting structure 140 has a first through hole 141, wherein the first through hole 141 penetrates the first sound receiving element fixing portion 114 of the first sound wave collecting region 112, and the first sound wave inlet port 120 and the first through hole 141 They are respectively located on opposite sides of the first collection sound space 110.

The first sound pickup element 130 is, for example, a micro omnidirectional microphone disposed in the housing 150 and located on one side of the sound collecting structure 140. In detail, the first sound collecting element 130 and the first sound wave collecting area 112 are respectively located on opposite sides of the first through hole 141. Therefore, at least a portion of the first sound pickup element 130 fixed to the first sound pickup element fixing portion 114 of the first sound wave accumulation region 112 may be exposed to the first through hole 141. In other embodiments, the first sound pickup element 130 is disposed corresponding to the first through hole 141, but is spaced apart from the first sound pickup element fixing portion 114 of the first sound wave gathering area 112, or is disposed in the first sound wave gathering area 112. The first sound pickup element fixing portion 114 is located in the first sound wave gathering region 112. Generally, the first sound receiving component 130 is electrically connected to a circuit board (not shown), and is electrically connected to an audio processing unit (not shown) through a circuit board (not shown), wherein the audio processing unit (not shown) The display is electrically connected to an audio storage unit (not shown) through a circuit board (not shown). In this way, the audio collected by the first sound pickup unit 130 can be transmitted to an audio processing unit (not shown) through a circuit board (not shown), and transmitted to the audio through the circuit board (not shown) after the audio processing is completed. A storage unit (not shown) is stored.

In response to the above, sound waves from the outside can enter the first sound collecting space 110 from the first sound wave inlet port 120, and the sound wave in the first sound collecting space 110 can be roughly divided as follows: (1) sequentially pass the second sound wave The sound collecting area 113 and the first sound wave collecting area 112 are not received by the sound collecting structure 140, and the sound waves passing through the first sound wave collecting area 112 pass through the first through hole 141 to be recorded by the first sound collecting element 130; 2) When passing through the second sound wave gathering region 113, the sound wave is in contact with the sound collecting structure 140, and is reflected by the first reflecting block 111 and passes through the first through hole 141 to be recorded by the first sound collecting element 130; (3) When a sound collecting region 112 is present, the sound wave is in contact with the sound collecting structure 140, and is reflected by the first reflecting block 111 and passes through the first through hole 141 to be recorded by the first sound pickup element 130. Since the difference in sound wave transmission distance causes a difference in sound pressure and phase, the diameter of the first sound collecting space 110 is tapered from the first sound wave inlet port 120 toward its deepest boundary (or the first sound pickup element fixing portion 114). And the design of the first reflective block 111 can control the interference of the sound waves entering the first sound collecting space 110 to have good horizontal directivity and eliminate noise. In this way, the audio recorded by the recording module 100 of the embodiment can not only reproduce the stereo sound but also have good audio quality during playback.

1C is a polar plot showing the horizontal pointing test results of the human ear and the recording module of the first embodiment. As shown in FIG. 1C, the sound frequency of the test is 4 kHz (4 kHz), and the test results show that the horizontal directivity of the recording module 100 is similar to the horizontal directivity of the human ear.

It is worth mentioning that the housing 150 of the recording module 100 can be used as a part of the casing of the mobile electronic device to be integrated with the mobile electronic device. Alternatively, the recording module 100 is assembled to the mobile electronic device by external connection. Since the recording module 100 can be electrically connected to the mobile electronic device, the audio recorded by the recording module 100 can be directly transmitted to the mobile electronic device for playing through the speaker of the mobile electronic device. In this way, the recording module 100 is not only convenient for the user to carry around, but also extremely simple in operation.

Other embodiments are listed below for illustration. It is to be noted that the following embodiments use the same reference numerals and parts of the above-mentioned embodiments, and the same reference numerals are used to refer to the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

2A is a schematic diagram of a recording module according to a second embodiment of the present invention. 2B is a top plan view of the recording module of FIG. 2A. Referring to FIG. 2A and FIG. 2B, the recording module 100A of the present embodiment is substantially similar to the recording module 100 of the first embodiment. The difference between the two is that the sound collecting structure 140a and the housing 150 further define the first sound wave. Enter zone 115. The first acoustic wave entering region 115 is adjacent to the second acoustic wave collecting region 113, wherein the first acoustic wave entering region 115 and the second acoustic wave collecting region 113 respectively abut the first acoustic wave inlet port 120a, and the first reflective segment 111 is located at the first acoustic wave The entry zone 115 is between the second acoustic wave accumulation zone 113. In detail, the first sound collecting space 110 and the first sound wave inlet port 120a are defined by the sound collecting structure 140a and the housing 150, for example, wherein the sound collecting structure 140a and the housing 150 are further defined with the first reflecting block 111. The first extension block 116 is connected, and the first extension block 116 is adjacent to the first acoustic wave entry region 115. For example, the circumferential side of the housing 150 can have an opening through which the sound collecting structure 140a can be used to define a first acoustic wave inlet port 120a that is part of the aforementioned opening. Compared with the recording module 100 of the first embodiment, the opening area of the first acoustic wave inlet 120a of the present embodiment is larger than the opening area of the first acoustic wave inlet 120.

3A is a schematic diagram of a recording module in accordance with a third embodiment of the present invention. 3B is a top plan view of the recording module of FIG. 3A. Referring to FIG. 3A and FIG. 3B , the recording module 100B of the present embodiment is substantially similar to the recording module 100 of the first embodiment. The difference between the two is that the recording module 100B can pass through the sound collecting structure 140 b and the housing 150 . The first set of acoustic space 110, the first acoustic wave inlet 120, the second sound collection space 160, and the second acoustic wave inlet 170 are defined, wherein the first sound collection space 110 and the second sound collection space 160 are separated by the sound collection structure 140b. They are separated and not connected to each other. In detail, the sound collecting structure 140b may have a central axis C, the first sound collecting space 110 and the second sound collecting space 160 are symmetrically disposed on opposite sides of the central axis C, and the second sound wave inlet port 170 and the first sound wave The inlet port 120 is symmetrically disposed on opposite sides of the central axis C. The first acoustic wave inlet port 120 is in communication with the first sound collecting space 110, and the second sound wave inlet port 170 is in communication with the second sound collecting space 160. Since the recording module 100B includes the first sound collecting space 110 and the second sound collecting space 160 which are bilaterally symmetric, audio from two different directions can be recorded. It is to be noted that the present invention does not limit the recording module to include the first sound collection space and the second sound collection space, and may only include one of the first sound collection space and the second sound collection space.

In the embodiment, the second sound collecting space 160 is juxtaposed with the first sound collecting space 110. The second collection sound space 160 has at least a second reflection block 161, wherein the second reflection block 161 is adjacent to the third sound wave accumulation area 162 and the fourth sound wave accumulation area 163, respectively. The third sound wave collecting region 163 has a tiger mouth shape such that the second sound pickup element fixing portion 164 is defined at the deepest point, and the first sound pickup element fixing portion 114 and the second sound pickup element fixing portion 164 are opposed to each other. The second sound wave inlet port 170 is formed correspondingly to at least a partial circumference side of the fourth sound wave accumulation region 163. On the other hand, the recording module 100B may include a second sound pickup element 180, wherein the second sound pickup element 180 is disposed at the second sound pickup element fixing portion 164 of the third sound wave gathering area 162, and the second sound pickup element 180 and the first sound pickup element 130 are opposite each other. The second sound pickup component 180 is configured to record the audio entering the second sound collection space 160.

The caliber of the fourth acoustic wave collecting region 163 is tapered from the second acoustic wave inlet port 170 toward the third acoustic wave collecting region 162, and the diameter of the third acoustic wave collecting region 162 is from the fourth acoustic wave collecting region 163 toward the deepest boundary thereof (or The second sound pickup element fixing portion 164) is tapered. The aforementioned deepest boundary means that the third sound wave gathering region 162 is located farthest from the third sound wave gathering region 162 and the fourth sound wave gathering region 163. As shown in FIG. 3B, the aperture of the third acoustic wave collecting region 162 relatively close to the fourth acoustic wave collecting region 163 is relatively closer to the deepest boundary of the third acoustic wave collecting region 162 (or the second sound collecting member fixing portion 164). It is big, so it looks like a tiger. On the other hand, the sound collecting structure 140b may have a second through hole 142, wherein the second through hole 142 penetrates the second sound receiving element fixing portion 164 of the third sound wave collecting portion 162, and the second sound wave inlet port 170 and the second through hole 142 are located on opposite sides of the second collection sound space 160, respectively.

The second sound pickup element 180 is, for example, a micro omnidirectional microphone disposed in the housing 150 and housed in a groove of the sound collecting structure 140b with the first sound pickup element 130. In detail, the second sound collecting element 180 and the third sound wave collecting area 162 are respectively located on opposite sides of the second through hole 142. Therefore, at least a portion of the second sound pickup element 180 fixed to the second sound pickup element fixing portion 164 of the third sound wave accumulation region 162 may be exposed to the second through hole 142.

4A is a schematic diagram of a recording module according to a fourth embodiment of the present invention. 4B is a top plan view of the recording module of FIG. 4A. Referring to FIG. 4A and FIG. 4B, the recording module 100C of the present embodiment is substantially similar to the recording module 100B of the third embodiment. The difference between the two is that the sound collecting structure 140c and the housing 150 further define the first sound wave entering. Zone 115 and the second acoustic wave enter zone 117. The first acoustic wave entering region 115 is adjacent to the second acoustic wave collecting region 113, wherein the first acoustic wave entering region 115 and the second acoustic wave collecting region 113 respectively abut the first acoustic wave inlet port 120a, and the first reflective segment 111 is located at the first acoustic wave The entry zone 115 is between the second acoustic wave accumulation zone 113. The second acoustic wave entering region 117 is adjacent to the fourth acoustic wave collecting region 163, wherein the second acoustic wave entering region 117 and the fourth acoustic wave collecting region 163 are respectively adjacent to the second acoustic wave inlet port 170a, and the second reflective wave block 161 is located at the second acoustic wave inlet port 170a. The entry area 117 is between the fourth sound wave accumulation area 163. In detail, the first sound collecting space 110a, the first sound wave inlet port 120a, the second sound collecting space 160a, and the second sound wave inlet port 170a are defined, for example, by the sound collecting structure 140c and the housing 150, wherein the sound collecting structure 140c Further defining, with the housing 150, a first extension block 116 connected to the first reflection block 111 and a second extension block 118 connected to the second reflection block 161, the first extension block 116 and the first The acoustic wave entry zone 115 is adjacent and the second extension block 118 is adjacent to the second acoustic wave entry zone 117. It is to be noted that the present invention does not limit the recording module to include the first sound collection space and the second sound collection space, and may only include one of the first sound collection space and the second sound collection space.

In summary, since the sound wave transmission distance is different, the sound pressure and the phase are different. Therefore, the aperture of the sound collecting space is tapered from the sound wave inlet port toward the deepest boundary (or the fixed portion of the sound pickup member) and the reflective block. The design can control the interference of sound waves entering the sound collecting space to have good horizontal directivity and eliminate noise. In this way, the audio recorded by the recording module of the present invention can not only reproduce the stereo sound effect but also have good audio quality during playback.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

100, 100A~100C: recording module 110, 110a: first set sound space 111: first reflective block 112: first sound wave gathering area 113: second sound wave collecting area 114: first sounding element fixing part 115: A sound wave entry zone 116: a first extension block 117: a second sound wave entry zone 118: a second extension block 120, 120a: a first sound wave entry port 130: a first sound pickup element 140, 140a~140c: a sound collection structure 141 : a first through hole 142: a second through hole 150: a housing 160, 160a: a second sound collecting space 161: a second reflecting block 162: a third sound wave collecting area 163: a fourth sound wave collecting area 164: a second sound collecting Element fixing portion 170, 170a: second sound wave inlet port 180: second sound pickup element C: central axis

1A is a schematic diagram of a recording module according to a first embodiment of the present invention. FIG. 1B is a top plan view of the recording module of FIG. 1A. 1C is a polar plot showing the horizontal pointing test results of the human ear and the recording module of the first embodiment. 2A is a schematic diagram of a recording module according to a second embodiment of the present invention. 2B is a top plan view of the recording module of FIG. 2A. 3A is a schematic diagram of a recording module in accordance with a third embodiment of the present invention. 3B is a top plan view of the recording module of FIG. 3A. 4A is a schematic diagram of a recording module according to a fourth embodiment of the present invention. 4B is a top plan view of the recording module of FIG. 4A.

100C: recording module 110a: first sound collecting space 111: first reflecting block 114: first sounding element fixing portion 116: first extending block 118: second extending block 120a: first sound wave inlet port 130: The first sound collecting element 140c: the sound collecting structure 141: the first through hole 142: the second through hole 150: the housing 160a: the second sound collecting space 161: the second reflecting block 164: the second sound receiving element fixing portion 170a: Two sound wave inlet port 180: second sound pickup element

Claims (10)

A recording module includes: a set of sound spaces having at least one reflective block, the reflective blocks being adjacent to a first sound wave gathering area and a second sound wave collecting area, wherein the first sound wave gathering area is a tiger mouth a state in which a sound receiving component is defined at a deepest portion; a sound wave inlet port corresponding to at least a partial circumference side of the second sound wave gathering region; and a sound pickup element disposed on the sound collecting component of the first sound wave gathering region a fixing portion, wherein the sound collecting component is configured to receive an audio entering the sound collecting space, wherein a diameter of the second sound wave collecting region tapers from the sound wave inlet port toward the first sound wave gathering region, and a diameter of the first sound wave gathering region The second sound wave gathering region is tapered toward the sound pickup element. The recording module of claim 1, further comprising: a sound collecting structure, the sound collecting structure having a through hole, wherein the through hole penetrates the sound receiving element fixing portion of the first sound wave collecting area, and the The sound wave inlet port and the through hole are respectively located on opposite sides of the sound collecting space. The recording module of claim 2, further comprising: a housing, the sound collecting structure is disposed in the housing, and the sound collecting structure and the housing define the sound collecting space and the sound wave enters mouth. The recording module of claim 3, wherein the sound collecting structure and the housing further define an acoustic wave entry zone, the sound wave entry zone is adjacent to the second sound wave gathering zone, and the reflective block Located between the sound wave entry zone and the second sound wave accumulation zone. The recording module of claim 2, wherein the first sound wave collecting area and the sound collecting element are respectively located on opposite sides of the sound collecting structure, and the through hole exposes at least a part of the sound collecting element. A recording module includes: a first sound collecting space having at least a first reflecting block, wherein the first reflecting block is adjacent to a first sound wave collecting area and a second sound wave collecting area, respectively. The sound wave gathering area is in a tiger mouth state, so that a deepest portion defines a first sound receiving element fixing portion; a second sound collecting space is juxtaposed with the first sound collecting space, and the second collected sound space has at least a second reflection a block, the second reflective block is adjacent to a third sound wave collecting area and a fourth sound wave collecting area, and the third sound wave collecting area is in a tiger mouth state, so that a second sound receiving element is fixed at the deepest point. And the first sound receiving element fixing portion and the second sound receiving element fixing portion are opposite to each other; a first sound wave inlet port corresponding to at least a partial circumference side of the second sound wave gathering region; and a second sound wave inlet port corresponding to Formed on the at least partial peripheral side of the fourth sound wave gathering region, and the first sound wave inlet port and the second sound wave inlet port are opposite to each other; a first sound pickup element, the first sound pickup element disposed in the first sound wave gathering region fixed The first sound collecting component is configured to receive the audio entering the first sound collecting space, wherein the diameter of the second sound wave collecting area is tapered from the first sound wave inlet port toward the first sound wave gathering area, and the first sound wave a caliber of the gathering zone tapers from the second acoustic gathering area toward the first sound collecting element; a second sound collecting component disposed in the second sound collecting component fixing portion of the third sound wave collecting area, wherein the second sound collecting component is configured to receive the sound entering the second sound collecting space, wherein the diameter of the fourth sound wave gathering area The second acoustic wave inlet port is tapered toward the third sound wave collecting region, and the diameter of the third sound wave collecting region is tapered toward the second sound collecting member from the fourth sound wave collecting region. The recording module of claim 6, further comprising: a set of acoustic structures, the sound collecting structure having a first through hole and a second through hole opposite to the first through hole, the first The through hole runs through the first sound receiving element fixing portion of the first sound wave collecting area, and the first sound wave inlet port and the first through hole are respectively located on opposite sides of the first sound collecting space, and the second through hole runs through The second sound receiving element fixing portion of the third sound wave collecting area, and the second sound wave inlet port and the second through hole are respectively located on opposite sides of the second sound collecting space. The recording module of claim 7, further comprising: a housing, the sound collecting structure is disposed in the housing, and the sound collecting structure and the housing define the first sound collecting space, a first sound wave inlet port, the second sound collecting space, and the second sound wave inlet port. The recording module of claim 8, wherein the sound collecting structure and the housing further define a first sound wave entry zone and a second sound wave entry zone, the first sound wave entry zone and the second The sound wave collecting area is adjacent to each other, and the first reflecting block is located between the first sound wave entering area and the second sound wave collecting area, the second sound wave entering area is adjacent to the fourth sound wave collecting area, and the second The reflective block is located between the second acoustic wave entry zone and the fourth acoustic wave accumulation zone. The recording module of claim 7, wherein the first sound wave collecting area and the first sound collecting element are respectively located on opposite sides of the sound collecting structure, and the first through hole exposes at least part of the a sound collecting component, the third sound collecting region and the second sound collecting component are respectively located on opposite sides of the sound collecting structure, and the second through hole exposes at least a portion of the second sound collecting component.